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1 /* | |
2 * Copyright 2014 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #include "DMPDFTask.h" | |
9 #include "DMPDFRasterizeTask.h" | |
10 #include "DMUtil.h" | |
11 #include "DMWriteTask.h" | |
12 #include "SkCommandLineFlags.h" | |
13 #include "SkDocument.h" | |
14 | |
15 // The PDF backend is not threadsafe. If you run dm with --pdf repeatedly, you | |
16 // will quickly find yourself crashed. (while catchsegv out/Release/dm;; end). | |
17 // | |
18 // TODO(mtklein): re-enable by default, maybe moving to its own single thread. | |
19 DEFINE_bool(pdf, false, "PDF backend master switch."); | |
20 | |
21 namespace DM { | |
22 | |
23 PDFTask::PDFTask(const char* config, | |
24 Reporter* reporter, | |
25 TaskRunner* taskRunner, | |
26 skiagm::GMRegistry::Factory factory, | |
27 RasterizePdfProc rasterizePdfProc) | |
28 : CpuTask(reporter, taskRunner) | |
29 , fGM(factory(NULL)) | |
30 , fName(UnderJoin(fGM->getName(), config)) | |
31 , fRasterize(rasterizePdfProc) {} | |
32 | |
33 PDFTask::PDFTask(Reporter* reporter, | |
34 TaskRunner* taskRunner, | |
35 const SkPicture* picture, | |
36 SkString filename, | |
37 RasterizePdfProc rasterizePdfProc) | |
38 : CpuTask(reporter, taskRunner) | |
39 , fPicture(SkRef(picture)) | |
40 , fName(UnderJoin(FileToTaskName(filename).c_str(), "pdf")) | |
41 , fRasterize(rasterizePdfProc) {} | |
42 | |
43 namespace { | |
44 | |
45 class SinglePagePDF { | |
46 public: | |
47 SinglePagePDF(SkScalar width, SkScalar height) | |
48 : fDocument(SkDocument::CreatePDF(&fWriteStream)) | |
49 , fCanvas(fDocument->beginPage(width, height)) {} | |
50 | |
51 SkCanvas* canvas() { return fCanvas; } | |
52 | |
53 SkStreamAsset* end() { | |
54 fCanvas->flush(); | |
55 fDocument->endPage(); | |
56 fDocument->close(); | |
57 return fWriteStream.detachAsStream(); | |
58 } | |
59 | |
60 private: | |
61 SkDynamicMemoryWStream fWriteStream; | |
62 SkAutoTUnref<SkDocument> fDocument; | |
63 SkCanvas* fCanvas; | |
64 }; | |
65 | |
66 } // namespace | |
67 | |
68 void PDFTask::draw() { | |
69 SkAutoTDelete<SkStreamAsset> pdfData; | |
70 bool rasterize = true; | |
71 if (fGM.get()) { | |
72 rasterize = 0 == (fGM->getFlags() & skiagm::GM::kSkipPDFRasterization_Fl
ag); | |
73 SinglePagePDF pdf(fGM->width(), fGM->height()); | |
74 CanvasPreflight(pdf.canvas()); | |
75 //TODO(mtklein): GM doesn't do this. Why not? | |
76 //pdf.canvas()->concat(fGM->getInitialTransform()); | |
77 fGM->draw(pdf.canvas()); | |
78 pdfData.reset(pdf.end()); | |
79 } else { | |
80 SinglePagePDF pdf(fPicture->cullRect().width(), fPicture->cullRect().hei
ght()); | |
81 CanvasPreflight(pdf.canvas()); | |
82 fPicture->playback(pdf.canvas()); | |
83 pdfData.reset(pdf.end()); | |
84 } | |
85 | |
86 SkASSERT(pdfData.get()); | |
87 if (rasterize) { | |
88 this->spawnChild(SkNEW_ARGS(PDFRasterizeTask, | |
89 (*this, pdfData->duplicate(), fRasterize))); | |
90 } | |
91 const char* sourceType = fGM.get() ? "GM" : "SKP"; | |
92 this->spawnChild(SkNEW_ARGS(WriteTask, | |
93 (*this, sourceType, pdfData->duplicate(), ".pdf"
))); | |
94 } | |
95 | |
96 bool PDFTask::shouldSkip() const { | |
97 if (!FLAGS_pdf) { | |
98 return true; | |
99 } | |
100 if (fGM.get() && 0 != (fGM->getFlags() & skiagm::GM::kSkipPDF_Flag)) { | |
101 return true; | |
102 } | |
103 return false; | |
104 } | |
105 | |
106 } // namespace DM | |
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